downhole drilling tools meaning in Chinese
井下钻井工具
Examples
- Changsha lnstitute of mining research cimr with rich design experiences is the earliest to be engaged in research on downhole drilling tools and rock drill bits in china and has carried on the work more than 25 years
我公司这次在这次展览会上展出了cs165 , cs100d , cs100l和潜孔钻机，并进行了高压水射流技术的介绍和推广工作。产品的技术领先得到了很多公司的认同。